Combine dry ingredients. Cut margarine into dry ingredients with knives. Add milk and egg and stir slowly just until mixture leaves side of bowl. Spoon dough or roll into 1 inch thickness and cut with 1&1/2 inch glass and place on greased & floured cookie sheet. Bake at 350 for 15-20 minutes or until golden. Freezes well; to unfreeze, cover frozen scones with paper towel and micro on high for 1 minute.